loop0: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0 fs/ocfs2/aops.c:1219
Code: 00 48 c7 c6 f5 2b d2 8d ba 6a 04 00 00 48 c7 c1 c0 63 f1 8b e8 3d 4e 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 1d 47 13 fe 90 <0f> 0b e8 15 47 13 fe 90 0f 0b e8 0d 47 13 fe 90 0f 0b e8 05 47 13
RSP: 0018:ffffc9000e75ece0 EFLAGS: 00010293
RAX: ffffffff83b142a3 RBX: ffff8880406ec014 RCX: ffff888000a70000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000e75f010 R08: ffff888011b0c023 R09: 1ffff11002361804
R10: dffffc0000000000 R11: ffffed1002361805 R12: ffff888044ae8000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880406ec014
FS:  00007f019b6126c0(0000) GS:ffff88808cce8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000600000 CR3: 000000001f117000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3305/0x4140 fs/ocfs2/aops.c:1796
 ocfs2_write_begin+0x1c5/0x320 fs/ocfs2/aops.c:1884
 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314
 ocfs2_file_write_iter+0x1663/0x1e20 fs/ocfs2/file.c:2475
 do_iter_readv_writev+0x619/0x8c0 fs/read_write.c:-1
 vfs_writev+0x33c/0x990 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_sys_pwritev2 fs/read_write.c:1211 [inline]
 __se_sys_pwritev2+0x184/0x2a0 fs/read_write.c:1202
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f019a79aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f019b612028 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f019aa15fa0 RCX: 00007f019a79aeb9
RDX: 0000000000000001 RSI: 0000200000000cc0 RDI: 0000000000000009
RBP: 00007f019a808c1f R08: 000000000000000c R09: 0000000000000004
R10: 0000000000000fff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f019aa16038 R14: 00007f019aa15fa0 R15: 00007fff96568dc8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0 fs/ocfs2/aops.c:1219
Code: 00 48 c7 c6 f5 2b d2 8d ba 6a 04 00 00 48 c7 c1 c0 63 f1 8b e8 3d 4e 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 1d 47 13 fe 90 <0f> 0b e8 15 47 13 fe 90 0f 0b e8 0d 47 13 fe 90 0f 0b e8 05 47 13
RSP: 0018:ffffc9000e75ece0 EFLAGS: 00010293
RAX: ffffffff83b142a3 RBX: ffff8880406ec014 RCX: ffff888000a70000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000e75f010 R08: ffff888011b0c023 R09: 1ffff11002361804
R10: dffffc0000000000 R11: ffffed1002361805 R12: ffff888044ae8000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880406ec014
FS:  00007f019b6126c0(0000) GS:ffff88808cce8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f414d08168 CR3: 000000001f117000 CR4: 0000000000352ef0